<!DOCTYPE html>
<html>
<head>
    <title>alert.html</title>
    <meta charset="UTF-8">
    <meta name="content-type" content="text/html; charset=UTF-8">
</head>
<script type="text/javascript" src="alert.js"></script>
<body>
<br>
<br>
<h1>This is my HTML page.</h1>

<br>
<button id="btn">hello</button>
</body>

</html>
